If you were trying to convince your friends to get an Xbox for fighters, then you definitely were fighting a "slight" uphill battle. Fighting games were always more robust on PlayStation than Xbox. Just like shooters are more dominant on Xbox than PlayStation. PS4 has many more fighters than Xbox One does.
Actually, he was planning on getting it. I've been talking to him about it since before Guilty Gear was announced and he was like "I am cool with the pS4". I showed him some KI matches and he was saying that he'd get into it if he had more games he wanted on the Xbox. Halo 5 was announced and he was like "Cool". Microsoft opened their mouth at E3 and he was like "YES! I don't have to buy an XBox!" His reaction was pretty funny. Most of my Playstation friends were like...."It was bound to happen, in the end Microsoft doesnt have much that the PC doesn't already get, especially when they are supporting PC themselves."